package pages

import (
	"fmt"

	"gitea.unprism.ru/yotia/display-test/components"
	"gitea.unprism.ru/yotia/display-test/drawer"
)

type initPage struct {
	drawer drawer.Drawer // Drawer with dysplay

	title components.Text
	bar   components.ProgressBar
}

// Only functions that control content of page
type InitPageContent interface {
	SetTitle(title string)
	GetProgressBar() components.ProgressBar
}

type InitPage interface {
	Page
	InitPageContent
}

func NewInitPage(d drawer.Drawer) (InitPage, error) {
	if err := d.GetDisplay().IsReady(); err != nil {
		return nil, fmt.Errorf("display is ready: %w", err)
	}

	title, err := components.NewText(d, 0, 0)
	if err != nil {
		return nil, fmt.Errorf("create title: %w", err)
	}
	pb, err := components.NewProgressBar(d, 0, drawer.LineH*3, d.W(), drawer.LineH) // Bottom
	if err != nil {
		return nil, fmt.Errorf("create progress bar: %w", err)
	}
	return &initPage{
		drawer: d,
		title:  title,
		bar:    pb,
	}, nil
}

func (p *initPage) Activate() {
	// Draw
	p.drawer.Clear()
	p.title.Draw()
	p.bar.Draw()
}

func (p *initPage) Diactivate() {
	// Do not clear because next page will have to clear whole screen any way
}

func (p *initPage) SetTitle(title string) {
	p.title.SetPos((p.drawer.W()-len(title)*(drawer.FontCharW+drawer.CharGap))/2, drawer.FontCharH) // Text in center
	p.title.SetStr(title)
}

func (p *initPage) GetProgressBar() components.ProgressBar {
	return p.bar
}

func (p *initPage) Close() (outErr error) {
	// TODO Not the best way...
	if err := p.title.Close(); err != nil {
		outErr = fmt.Errorf("title close: %w:", err)
	}
	if err := p.bar.Close(); err != nil {
		outErr = fmt.Errorf("progress bar close: %w:", err)
	}
	return
}